[PATCH] smack: include linux/watch_queue.h

[PATCH] smack: include linux/watch_queue.h

[Arnd Bergmann]

In some randconfig builds, the lack of an explicit #include
in smack_lsm.c causes a build failure:

security/smack/smack_lsm.c:4384:7: error: incomplete definition of type 'struct watch_notification'
        if (n->type == WATCH_TYPE_META)
            ~^
include/linux/device.h:46:8: note: forward declaration of 'struct watch_notification'
struct watch_notification;
       ^
security/smack/smack_lsm.c:4384:17: error: use of undeclared identifier 'WATCH_TYPE_META'
        if (n->type == WATCH_TYPE_META)

Fixes: 5301fef8ca60 ("smack: Implement the watch_key and post_notification hooks [untested]")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 security/smack/smack_lsm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index a15e76489683..5120dd9c6335 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -42,6 +42,7 @@
 #include <linux/parser.h>
 #include <linux/fs_context.h>
 #include <linux/fs_parser.h>
+#include <linux/watch_queue.h>
 #include "smack.h"
 
 #define TRANS_TRUE	"TRUE"
-- 
2.20.0

Re: [PATCH] smack: include linux/watch_queue.h

[kbuild test robot]

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Hi Arnd,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc8 next-20190904]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/smack-include-linux-watch_queue-h/20190910-095704
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=ia64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> security/smack/smack_lsm.c:45:10: fatal error: linux/watch_queue.h: No such file or directory
    #include <linux/watch_queue.h>
             ^~~~~~~~~~~~~~~~~~~~~
   compilation terminated.

vim +45 security/smack/smack_lsm.c

  > 45	#include <linux/watch_queue.h>
    46	#include "smack.h"
    47	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Re: [PATCH] smack: include linux/watch_queue.h

[kbuild test robot]

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Hi Arnd,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc8 next-20190904]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Arnd-Bergmann/smack-include-linux-watch_queue-h/20190910-095704
reproduce:
        # apt-get install sparse
        # sparse version: 
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> security/smack/smack_lsm.c:45:11: sparse: error: unable to open 'linux/watch_queue.h'

vim +45 security/smack/smack_lsm.c

  > 45	#include <linux/watch_queue.h>
    46	#include "smack.h"
    47	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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Re: [PATCH] smack: include linux/watch_queue.h

[Casey Schaufler]

On 9/9/2019 1:46 PM, Arnd Bergmann wrote:
> In some randconfig builds, the lack of an explicit #include
> in smack_lsm.c causes a build failure:

What tree/branch are you working with? I don't see this.

>
> security/smack/smack_lsm.c:4384:7: error: incomplete definition of type 'struct watch_notification'
>         if (n->type == WATCH_TYPE_META)
>             ~^
> include/linux/device.h:46:8: note: forward declaration of 'struct watch_notification'
> struct watch_notification;
>        ^
> security/smack/smack_lsm.c:4384:17: error: use of undeclared identifier 'WATCH_TYPE_META'
>         if (n->type == WATCH_TYPE_META)
>
> Fixes: 5301fef8ca60 ("smack: Implement the watch_key and post_notification hooks [untested]")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  security/smack/smack_lsm.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
> index a15e76489683..5120dd9c6335 100644
> --- a/security/smack/smack_lsm.c
> +++ b/security/smack/smack_lsm.c
> @@ -42,6 +42,7 @@
>  #include <linux/parser.h>
>  #include <linux/fs_context.h>
>  #include <linux/fs_parser.h>
> +#include <linux/watch_queue.h>
>  #include "smack.h"
>  
>  #define TRANS_TRUE	"TRUE"

Re: [PATCH] smack: include linux/watch_queue.h

[Arnd Bergmann]

On Mon, Sep 23, 2019 at 2:50 PM Casey Schaufler <casey@schaufler-ca.com> wrote:
>
> On 9/9/2019 1:46 PM, Arnd Bergmann wrote:
> > In some randconfig builds, the lack of an explicit #include
> > in smack_lsm.c causes a build failure:
>
> What tree/branch are you working with? I don't see this.

It was in the latest linux-next at the time I posted the patch. It's
possible that
the patch causing the problem got removed in the meantime.

      Arnd